1 /*
2 * Copyright (c) 2002, Intel Corporation. All rights reserved.
3 * This file is licensed under the GPL license. For the full content
4 * of this license, see the COPYING file at the top level of this
5 * source tree.
6
7 * Upon successful completion, fsync() shall return 0.
8 * Otherwise, .1 shall be returned and errno set
9 * to indicate the error. If the fsync() function fails.
10 *
11 * 1. Create a regular file;
12 * 2. Write a few bytes to the file, call fsycn(), should return 0;
13 *
14 */
15
16 #define _XOPEN_SOURCE 600
17 #include <stdio.h>
18 #include <stdlib.h>
19 #include <unistd.h>
20 #include <sys/mman.h>
21 #include <sys/types.h>
22 #include <sys/stat.h>
23 #include <fcntl.h>
24 #include <string.h>
25 #include <errno.h>
26 #include "posixtest.h"
27
28 #define TNAME "fsync/4-1.c"
29
main(void)30 int main(void)
31 {
32 char tmpfname[256];
33 char *data;
34 int total_size = 1024;
35 int fd;
36
37 snprintf(tmpfname, sizeof(tmpfname), "/tmp/pts_fsync_4_1_%d", getpid());
38 unlink(tmpfname);
39 fd = open(tmpfname, O_CREAT | O_RDWR | O_EXCL, S_IRUSR | S_IWUSR);
40 if (fd == -1) {
41 printf(TNAME " Error at open(): %s\n", strerror(errno));
42 exit(PTS_UNRESOLVED);
43 }
44
45 /* Make sure the file is removed when it is closed */
46 unlink(tmpfname);
47 data = malloc(total_size);
48 memset(data, 'a', total_size);
49 if (write(fd, data, total_size) != total_size) {
50 printf(TNAME "Error at write(): %s\n", strerror(errno));
51 free(data);
52 exit(PTS_UNRESOLVED);
53 }
54 free(data);
55
56 if (fsync(fd) == -1) {
57 printf(TNAME "Error at fsync(): %s\n", strerror(errno));
58 exit(PTS_FAIL);
59 }
60
61 close(fd);
62 printf("Test PASSED\n");
63 return PTS_PASS;
64 }
65